All categories

2 years ago

Find the area of the triangle.

Mathematics

2 answers:

adoni [48]2 years ago

8 0

Base= 15
Height= 18

Area= 135

baherus [9]2 years ago

4 0

To find the area of a triangle, you just do (base * height)/2.

The base here is 15, and the height is 18. So, you plug those into (15 * 18)/2 = 135 inches squared.

You were probably confused about the hypotenuse length, which was extra info that wasn't needed.

You might be interested in

How do you ungroup a 3 digit number? My nephew is working on his homework and I have no clue how to help him.

Talja [164]

In monetary terms, you're making change. If you need more ones, you trade one 10 for 10 ones.

When I was in school, many years ago, we used small superscript-type numbers to show this:

7 3 0 ⇒ 7 2 ¹0 . . . . regrouping to gain 10 ones

7 2 ¹0 ⇒ 6 ¹2 ¹0 . . .regrouping again to gain 10 more tens

You'd have to look at the example problems that precede this page in order to see what the meaning of "magnifying glass" is.

6 0

3 years ago

Kate has 25 skirts, out of which 10 are white. if Kate randomly selects a skirt to wear, what is the probability it will be whit

ivanzaharov [21]

Answer:

10/25 or in percentage it is 40%

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Pls helpASAP!!! 3x+ 12 = 2(8+ 4x)

mojhsa [17]

$3x+12=2(8+4x)$ distribute

$3x+12=16+8x\\$ collect like-terms

$3x-8x=16-12\\-5x=4\\x=-\frac{4}{5}=-0.8$

5 0

2 years ago

Read 2 more answers

Chuck's Computer Corporation has 10,000 shares of stock outstanding.

cupoosta [38]

Hi there
the dividend per share of stock
15,000÷10,000
=1.5 per share
if you owned 50 shares
1.5×50
=75

Hope it helps

8 0

3 years ago

Read 2 more answers

I’ll give you brainliest for the first person with an answer

raketka [301]

Answer:

1296mm^2

Step-by-step explanation:

Surface Area of the Rectangular Prism to the left on top of the box:

Area of square = lw, 9mm * 9mm = 81mm, then multiply by 2 because 2 of the squares are a part of the surface, giving 162mm^2

Area of a rectangle =lw, 9mm * 9mm = 81mm, then multiply by 2 again, because 2 rectangles are a part of the surface, giving 162mm^2

So, the total surface area of the rectangular prism to the left on top, is 324mm^2

Surface Area of the Triangular Prism:

Area of a triangle: 1/2bh, and our base length would be 12, because we have to subtract 9 from 21 since the base length of the triangle isn't stated. Anyways, A = 1/2bh, so A = 1/2(12)(9) = 54mm^2, but multiply by two, so we get 108mm^2.

Area of the rectangle: lw, so 15mm * 9mm = 135mm^2

So, the total surface area of the triangular prism is 243mm^2

Surface Area of the Rectangular Prism at the bottom:

Area of the long rectangles in front = lw, 21mm * 9mm = 189mm^2, multiply by 2, 378mm^2

Area of the rectangles to the side = lw, 9mm * 9mm = 81mm^2, multiply by 2, 162mm^2

Area of the rectangle at the very bottom = lw, 21mm * 9mm = 189mm^2

So, the total surface area of the rectangular prism at the bottom is 729mm^2

Add all the total surface areas of each shape to get the total surface area of the figure:

324mm^2 + 243mm^2 + 729mm^2 = 1296mm^2

The surface area of the figure above is 1296mm^2

4 0

2 years ago