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3 years ago

Answer pleaseeeee?:)

Mathematics

1 answer:

gtnhenbr [62]3 years ago

4 0

If I were to tell a kid how to use the formula (the SA of a pyramid it looks like):

First, find the area of the base of the figure, using length times width.

Next, find the perimeter of the base by adding up the length of each side of the base.

Multiply the perimeter of the base by the slant height of the figure, which is the line on the side of the figure that is diagonal.

Divide the answer you got from multiplying the perimeter of the base times the slant height of the base by 2.

Now add up the area of the base of the figure with the answer you just got by dividing the perimeter of the base times the slant height by 2.

That is how you use the formula: SA = B + 1/2(P · l)

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3 years ago

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3 years ago

Verify (−25) x [15 + (−5)] = [(−25) x 15] + [(−25) x (−5)

KengaRu [80]

Answer:

Take L.H.S and the R.H.S

Step-by-step explanation:

Taking L.H.S

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2 years ago

Help find the missing lengths round to nearest tenth

Mama L [17]

Answer:

Step-by-step explanation:

Theta is 21 degrees

x is the adjacent side
8 is the opposite side
y is the hypothenuse

SOH - CAH - TOA

Since the opposite side is given and we need to find the length of the adjacent side, we can use tangent to solve for x.

$tan 21=\frac{opposite}{adjacent} \\tan 21 =\frac{8}{x} \\0.384 =\frac{8}{x} \\0.384x =8 \\x=\frac{8}{0.384} \\x=20.84$

Since the opposite side is given and we need to find the length of the hypotenuse, we can use sine to solve for y.

$sin 21=\frac{opposite}{hypotenuse} \\sin21 =\frac{8}{y} \\0.358 =\frac{8}{y} \\0.358y=8 \\y=\frac{8}{0.358} \\y=22.32$

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2 years ago

The rectangle high is 6cm length is 9.3cm find the diagonal of the rectangle

Aleksandr-060686 [28]

Answer:

11.7 cm

Step-by-step explanation:

10^2 + 6^2 = c^2

100+36= 136

find the square root of 136 and you get 11.7 cm

3 0

3 years ago