MATH SOLVE

10 months ago

Q:
# PLEASE HELP WITH THIS QUESTION! WILL MARK BRAINLIESTRiley made a scale drawing of a triangular clock face. Riley used a scale factor of 3 when making her drawing. If the base and the height of Riley's drawing are 10 centimeters and 15 centimeters respectively, what is the area of the triangular clock face?A. 75 square centimetersB. 225 square centimetersC. 675 square centimetersD. 2,700 square centimeters

Accepted Solution

A:

we know that

[scale factor ]=[real]/[drawing]

[real]=[drawing]*[scale factor ]

step 1

find the real values

if the base of Riley's drawing is 10 centimeters

[real]=[drawing]*[scale factor ]--------> 10*3-------> 30 cm

the base of the triangular clock face is 30 cm

the height of Riley's drawing is 15 centimeters

[real]=[drawing]*[scale factor ]--------> 15*3-------> 45 cm

the height of the triangular clock face is 30 cm

the area of the triangular clock face is-----> 45*30/2-------> 675 cm²

the answer is the option C. 675 square centimeters

[scale factor ]=[real]/[drawing]

[real]=[drawing]*[scale factor ]

step 1

find the real values

if the base of Riley's drawing is 10 centimeters

[real]=[drawing]*[scale factor ]--------> 10*3-------> 30 cm

the base of the triangular clock face is 30 cm

the height of Riley's drawing is 15 centimeters

[real]=[drawing]*[scale factor ]--------> 15*3-------> 45 cm

the height of the triangular clock face is 30 cm

the area of the triangular clock face is-----> 45*30/2-------> 675 cm²

the answer is the option C. 675 square centimeters