Question

if one side and diagonal of a rectangle is 15cm and 20cm find perimeter​

Answer 1

Answer:

Step-by-step explanation:take rectangle ABCD LET AB be the side 20 cm and AC be the diagonal..

AB=20CM

DIAGONAL AC= 15 CM

USING PYTHAGORAS THEOREM ..BECOUSE ANGLES OF RECTANGLE ARE COUNGRUENT

THERE FORE =AB SQUARE +BC SQUARE=AC SQUARE

:. 20SQUARE +BC SQUARE =15 SQUARE

:.400+BC SQUARE=225

:.400-225=BC SQUARE

175=BC SQUARE

ROOT 175=BC

PERIMETER=2MULTIPLY L+B