Question 20 not yet answered marked out of 1.00 not flaggedflag question question text luna created a trash can in the shape of a triangular prism. the sides of the triangle are 1.6 feet, 2.3 feet, and 1.2 feet. find the measures of the angles of the triangle to the nearest tenth.

Consider the triangle with sides a=1.6, b=2.3 and c=1.2 feet. You can use cosine theorem twice to find two unknown angles:

1.

Then you can conclude that ∠B is obtuse (because ) and m∠B=110°.

2.

.

Then you can conclude that ∠C is acute (because ) and m∠C=29°.

3. m∠A+m∠B+m∠C=180°, then m∠A=180°-110°-29°=41°.

m∠A=41° (∠A is opposite to the side a=1.6), m∠B=110° (∠B is opposite to the side b=2.3) and m∠C=29° (∠C is opposite to the side c=1.2)

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a