Can you use this fact to find ∠B and ∠C? Class 7

Can you use this fact to find ∠B and ∠C? Class 7

Question 1.

Can you use this fact to find ∠B and ∠C? Class 7

Solution:

Yes,

∠B = ∠C = [latex]\frac{180^{\circ}-80^{\circ}}{2}[/latex] = 50°.

Question 2.

What can we say about their (equilateral triangles) angles? Class 7

Solution:

Their all angles are equal to 60°.

Question 3.

∆AIR = ∆FLY. Identify the corresponding vertices, sides and angles. Class 7

Solution:

A ↔ F; I ↔ L; R ↔ Y; AI ↔ FL; IR ↔ LY; AR ↔ FY; ∠A = ∠F, ∠I = ∠L, ∠R = ∠Y.