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The Americans with Disabilities Act states that Triangle Aramps must have an angle less than or equalto 4.8 degrees. Remember, a 4.8 degree anglein a right triangle has a 1 : 12 ratio for thelegs. Select all ramps that meet the Americanswith Disabilities Act requirements.

The Americans with Disabilities Act states that Triangle Aramps must have an angle less than or equalto 48 degrees Remember a 48 degree anglein a right triangle class=

Respuesta :

we have that

in a right triangle has a 1 : 12 ratio for the legs.

so

Verify the ratio of the legs in each triangle

triangle A ------> ratio=1/12 -----> is ok

triangle B ------> ratio=40/30=1.33 -------> 40/30 > 1/12 -----> is not ok

triangle C -----> ratio=10/120=1/12 -------> is ok

triangle D -----> ratio=1/15 -----> 1/15< 1/12 is ok

triangle E -----> ratio

Find the measure of angle

sin(angle)=2/15

angle=7.66 ------> is not ok

therefore

answer is

A,C,D