It is 40 because you have to find the area of each face so you would do 3*4 which equals 12 and since there is 4 of the triangles you do 12*4 which is 48 but when it's a triangle you have to cut it in half so it would really be 24.

Then for the square on the bottom you would do 4*4 which is 16 and then you would add the totals to get 40.

6 0

3 years ago

Please simplify this equation

Citrus2011 [14]

Use pemdas (parenthesis, exponents, multiply/divide, add/subtract);

5.9(4) + 4³ + 3.86

5.9(4) + 64 + 3.86

23.6 + 64 + 3.86

The answer is C) 91.46

8 0

3 years ago

Joel wants to fence off a triangular portion of his yard for his chickens. The three pieces of fencing he haas to use are 8 feet

Sedaia [141]

No, it will not be able to make a right triangle.

<em><u>Solution:</u></em>

Given that,

Joel wants to fence off a triangular portion of his yard for his chickens.

The length of three peices of fencing are 8 feet , 15 feet and 20 feet

For making it a right triangle it must satisfy the "Pythagorus theorem"

Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.

For a right angled triangle with sides a, b, c

$c^2 = a^2+b^2$

Given sides are:

a = 8 feet

b = 15 feet

c = 20 feet

Substituting the values in above formula

$20^2 = 8 ^2+15^2\\\\400 = 64 + 225\\\\400\neq 289$

Since the pythogoras formula is not satisfied, the given sides cannot form a right angled triangle

Thus , No, it will not be able to make a right triangle.

7 0

3 years ago