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kkurt [141]
2 years ago
14

A builder makes all of their ramps with a base to height ratio of 12:112:112, colon, 1 to be wheelchair-accessible. See the diag

ram below, which is not drawn to scale:

Mathematics
1 answer:
valina [46]2 years ago
3 0

Answer:

9.63 metres

Step-by-step explanation:

The base to height ratio =12:1

From the given ramp, Base to Height Ratio =Base:0.8

Therefore:

12:1=Base:0.8

\frac{12}{1}=\frac{Base}{0.8}  \\Base =12 X 0.8=9.6m

To find the length of the ramp, we apply Pythagoras theorem in the right triangle formed.

Length of the ramp ,l

=\sqrt{9.6^2+0.8^2} \\l=9.63\:metres

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