On a piece of paper, use a protractor to construct right triangle DEF with DE=4 in., m∠D=90°, and m∠E=45°. What statement is true about the triangle?

EF=7 in.

DF=2 in.

DF=4 in.

EF=4 in.

Question

Savanah Ellis

Mathematics

3 December, 21:37

On a piece of paper, use a protractor to construct right triangle DEF with DE=4 in., m∠D=90°, and m∠E=45°. What statement is true about the triangle?

EF=7 in.

DF=2 in.

DF=4 in.

EF=4 in.

+5

Answers (1)

Know the Answer?

Hana Dickerson · Answer 1

We can see that one of the angles (DE) is 90 degree, which means

DE^2 + DF^2 = EF^2

Since DE = 4 in, the only possible result of the triangle would be:

DE = 4 in

DF = 3 in

EF = 5 in

On a piece of paper, use a protractor to construct right triangle DEF with DE=4 in., m∠D=90°, and m∠E=45°. What statement is true about the triangle?EF=7 in.DF=2 in.DF=4 in.EF=4 in.

On a piece of paper, use a protractor to construct right triangle DEF with DE=4 in., m∠D=90°, and m∠E=45°. What statement is true about the triangle?

EF=7 in.

DF=2 in.

DF=4 in.

EF=4 in.