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23-05-2021
Mathematics

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In the figure, triangle ABC is a right triangle and m of angle A = 40 degrees. What is the measurement of angle ECD?

In the figure triangle ABC is a right triangle and m of angle A 40 degrees What is the measurement of angle ECD class=

Respuesta :

23-05-2021

Answer:

Solution given:

<A=49°

<B=90°

angle ECD=?

we have

<A+<B+<C=180°[sum of interior angle of a triangle is 180°

<A+40+90=180°

<A=180°-130°

<A=50°

wehave

<A=<ECD[vertically opposite angle]

:.angle ECD=50°.

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