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3 years ago

Plz help will give brainliest!

Mathematics

1 answer:

natita [175]3 years ago

4 0

Answer:

8.7

Step-by-step explanation:

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On a bicycle trail, the city is painting arrows like the one shown below: Upper pointing arrow with height of 15 and length of 1

Luden [163]

Answer:

229.5 $cm^{2}$

Step-by-step explanation:

In order to calculate the area of the arrow we need to calculate the area of the body of the arrow, and then the head of the arrow. The body of the arrow is a rectangle meaning that the area (Ar) can be calculated by multiplying the length by the height like so...

Ar = l * h

Ar = 11cm * 12cm

Ar = 132 $cm^{2}$

Now we need to find the area of the head of the arrow, which is a triangle and therefore we can use the formula for the area of a triangle (At) which is height times base divided by 2...

At = $\frac{h * b}{2}$

At = $\frac{15cm * 13cm}{2}$

At = $\frac{195cm^{2} }{2}$

At = 97.5 $cm^{2}$

Now we simply add both areas together to calculate the total area of the arrow...

132 $cm^{2}$ + 97.5 $cm^{2}$ = 229.5 $cm^{2}$

6 0

3 years ago

Read 2 more answers

A small theater had 9 rows of 25 chairs each. An extra 7 chairs have just been brought in. How many chairs are in the

Alchen [17]

Answer:

232

Step-by-step explanation:

9 x 25 = 225 225 + 7 = 232

another way to find it

9 x 20 = 180 9 x 5 = 45 180 + 45 = 225 + 7 = 232

8 0

3 years ago

PLEASE ANSWER QUICKLY

jenyasd209 [6]

Answer:

It should be D because I have done that a couple days ago

6 0

2 years ago

What 5+10<br> 15<br> 12<br> 19<br> 5

Yuliya22 [10]

Answer:

just add 10 plus 5

7 0

3 years ago

Read 2 more answers

I need these answered fast can anyone help. will give you brainliest.

bezimeni [28]

there is four lines of symmetry and yes angles ABC and DEF are ridget motion. the ridget moition is four units to the left and three units down. I hope this helps!!!

3 0

3 years ago