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English, , Medium

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Standard VIII MATHEMATICS, , Unit 1, EQUAL TRIANGLES, Score : 40, Time : 14hr, , , , (Answer the following questions. Each one carries 2 score), , 1. In the pair of triangles given below, find the matching pairs of sides and, write their names. (3x2=6), , P, , , , A, LS, 80°, 12cm 12cm, A 60° \ 80° 60° (\, B Cc Q R, 2. One angle of an isosceles triangle is 100°, find the measures of other two, angles., 3. In the figure below, AB = QR, AC = PQ and BC = PR. Also 4A=50°, “B=, 60° then, a) 20 = senewwn, DD) ZP Heese, € R Q, - \/, /\ (\, A B P:, (Answer the following questions. Each one carries 3 score) (7x3=21), 4. Inthe pair of triangles ABC and PQR find the pairs of matching angles and, write them., , urs), BE District Institute of Education and Training Thiruvananthapuram 2021 - 22

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Standard VIII MATHEMATICS, , 6cm, , A, B 6cm Cc, , P, In figure below, O is the centre of the cirele and A, B are points on the, circle. Also if AOB = 60° and radius of the circle is 3 cm then,, a) Compute ,Aand /B?, b) Find the perimeter of triangle AOB., , , , Draw a line 9 cm long and draw its perpendicular bisector., In figure ABCD is a parallelogram. AC = 6 cm, BD = 8 cm., , a) Write any two pairs of equal triangles., b) Find the lengths of AO and BO?, Using a protractor, draw an angle of measure 45° and draw its bisector?, , of Education and Training Thiruvananthapuram 2021 - 22, , 49

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50, A District Institute of Education and Training Thiruvananth, , Standard VIII MATHEMATICS, , 10., , Id., 12., , In figure O is the centre of the circle and AC, BD are diameters., a) What is the relation between the measures of ~AOB and »COD, b) Is the length of AB and CD equal? Why?, , In figure triangle ABC is an eqilateral triangle. Bisectors of ~A and /B, intersect at O:, , LX, , a) Find /OAB?, , b) What is the measure of » AOB?, , (Answer the following questions. Each one carries 4 score) (2*4=8), Draw a square of perimeter 15 cm., , 9, , BU G, , In triangle ABC, AB = BC and in triangle ACD, AD = CD., If ZABC = 100° and ZADC = 80°., Find the other two angles of quadrilateral ABCD?

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Standard VIII MATHEMATICS, , (Answer the following question and it carry 5 score) (1x 5=5), 13., A, 10 cm 10 cm, B M Cc, , In triangle ABC, AB= AC = 10 cm. Also M is the midpoint of BC if, BM= 6cm. then, , a) Find the measure of ~AMB?, b) Find the length of AM?, c) Find the area of , ABC?, , oy, of Education and Training Thiruvananthapuram 2021 - 22 A