Selina solutions

Selina solutions

Grade 6

Triangles (Including Types, Properties and Construction) | Revision Exercise

Question 1

Q1) If each of the two equal angles of an isosceles triangle is 68°, find the third angle.

Solution:

Let ABC is an isosceles triangle

In ABC, AB = AC

and B = C = 68°

But A + B + C = 180° (Sum of angles of a triangle )

A + 68° + 68° = 180°

A + 136° = 180°

A = 180° - 136° = 44°

Hence third angle = 44° .

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subject-cta

Question 1

Q1) If each of the two equal angles of an isosceles triangle is 68°, find the third angle.

Solution:

Let ABC is an isosceles triangle

In ABC, AB = AC

and B = C = 68°

But A + B + C = 180° (Sum of angles of a triangle )

A + 68° + 68° = 180°

A + 136° = 180°

A = 180° - 136° = 44°

Hence third angle = 44° .

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your mathematics exam ?

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subject-cta
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