PLZZZ solve all Deriving the Area of an Acute Triangle
In this activity, you will use GeoGebra to explore how trigonometric ratios can be used to find the area of a triangle when its height is unknown. Begin by finding the area of an acute triangle. If you need help, follow these instructions for using GeoGebra.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.

the height of the surface increases from the center out to the sides of the road

it is c!