Question

In the following right triangles, find the length of the unknown sides :​

Answer 1

Answer:

According to Pythagoras theorem,

(DF)²=(DE)²+(EF)²

37²=(DE)²+12²

1369=(DE)²+144

1369-144=(DE)²

1225=(DE)²

√1225=DE

35 CM=DE

STAN KPOP IDOLS

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Answer 2

Answer:

$35cm$

Step-by-step explanation:

This is right angle triangle.

Therefore by PYTHAGORAS THEOREM.

${DE}^{2} + {EF}^{2} = {FD}^{2}$

${ DE}^{2} + {12}^{2} + = {37}^{2}$

${DE}^{2} + 144 = 1369$

$DE = \sqrt{1225}$

$DE = 35cm$

Thankyou