Geometry Test






1. Three angles of a quadrilateral are 80°, 90° and 110°. Find the fourth angle. (āĻāϟāĻž āϚāĻ¤ā§ā§°ā§āϭ⧁āϜ⧰ āϤāĻŋāύāĻŋāϟāĻž āϕ⧋āĻŖ 80°, 90° āφ⧰⧁ 110°āĨ¤ āϚāĻ¤ā§ā§°ā§āĻĨ āϕ⧋āĻŖāĻŸā§‹ āύāĻŋā§°ā§āĻŖāϝāĻŧ āϕ⧰āĻ•āĨ¤)


2. In parallelogram ABCD, A = 70°. Find B and C. (āϏāĻŽāĻžāĻ¨ā§āϤ⧰ āϚāĻ¤ā§ā§°ā§āϭ⧁āϜ ABCD-āϤ ∠A = 70°āĨ¤ ∠B āφ⧰⧁ ∠C āύāĻŋā§°ā§āĻŖāϝāĻŧ āϕ⧰āĻ•āĨ¤)


3. The diagonals of a rectangle are equal. If AC = 12 cm, find BD. (āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§ā§°ā§° āĻ•ā§°ā§āĻŖāĻĻ⧁āϟāĻž āϏāĻŽāĻžāύāĨ¤ āϝāĻĻāĻŋ AC = 12 cm āĻšāϝāĻŧ, āϤ⧇āĻ¨ā§āϤ⧇ BD āύāĻŋā§°ā§āĻŖāϝāĻŧ āϕ⧰āĻ•āĨ¤)





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