construct an isosceles triangle whose base is 4.8cm and whose vertical angle is 80°
Answers
Δ ABC is constructed which is an isosceles triangle with base 4.8cm and vertical angle = 80°
Step-by-step explanation:
an isosceles triangle whose base is 4.8cm and whose vertical angle is 80°
as triangle is isosceles
hence base angles are equal
Let say Base is BC
∠B = ∠C
∠A = 80°
=> ∠A + ∠B + ∠C = 180°
=> 80° + ∠B + ∠C = 180°
=> ∠B + ∠C = 100°
∠B = ∠C
=> ∠B = ∠C = 50°
Step 1 : Draw a line segment BC = 4.8 cm using ruler
Step 2 : Draw an angle of 50° at B on BC using protector
Step 3 : Draw an angle of 50° at C on BC using protector such that it intersect line drawn in step 2 at A
Δ ABC is constructed which is an isosceles triangle with base 4.8cm and vertical angle = 80°
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