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Question from faris, a parent:

how to calculate area of isosceles triangle with two angles of 45 degree and base of 6

Faris,

Draw a diagram.

triangle

The 45 degree angles are at B and C. D is the midpoint of BC. What does the symmetry tell you about the measure of the angle ADC? What is the Measure of the angle CAD? What is the length of AD?

Penny

Faris write back.

penny reply, I still dont get it

Faris,

Can you answer my first question? What is the measure of the angle ADC?

Penny

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