All categories

3 years ago

I need help on number 17 and 18 on how to find the area of the figure

Mathematics

2 answers:

o-na [289]3 years ago

5 0

Step-by-step explanation:

17 ) Area of triangle = 1/2 × base × height

Area = 1/2 × 12 × 15

Area = 90 cm²

18 ) Area of trapezium = 1/2 (12 + 15.4) × 8

Area = 1/2 × 27.4 × 8

Area = 109.6 cm²

JulsSmile [24]3 years ago

3 0

17. Area of triangle: 1/2bh
1/2 * 12 * 15
1/2 * 180
=90 cm^2

18. Area of trapezoid: 1/2 h (b1 + b2)
1/2 * 8 ( 12 + 15.4)
4 * 27.4
= 109.6 cm^2

You might be interested in

A cat rescue service found homes for 40 cats in 5 weeks. What was the rate of cats being placed per week? Which ratio is equal t

ExtremeBDS [4]

A. 8 cats per week. if you simplify 40/5, it equals 8/1

7 0

3 years ago

Read 2 more answers

The product of two numbers that are less than zero is also less than zero. True False asap

tresset_1 [31]

False.
Multiplying two negatives gives a positive.

6 0

3 years ago

Read 2 more answers

The proper scientific notation for 676,000,000,000 is?

tia_tia [17]

6.76 x 10^11
this is because when you are placing something in a scientific notation you basically move the decimal place behind the last hole number in this case 6. and count the remaining numbers behind the decimal such as .76,000,000,000 which there 11 counting 76 with the zeros. then you place the number of places behind the decimal as an exponent of 11 and keep all real numbers besides 0 as your other half

7 0

2 years ago

Susan keeps track of the high and low temperatures every day for a week. The following table shows her data what is the average

uysha [10]

Answer:

10.75

Step-by-step explanation:

To get the average, we always SUM UP all the numbers and divide by the number of numbers.

We do this for "change" row since we want average of "change".

Let's add up all the changes:

11 + 12 + 10 + 10 + 11 + 10 + 11 = 75

How many numbers are there?

There are 7 numbers

Now, the average:

Average = Sum/Number of Numbers

Average = $\frac{75}{7}=10.75$

The average = 10.75

4 0

3 years ago

Find the measure of the indicated angle. Round to the nearest tenth of a<br> degree.

Simora [160]

I’m pretty sure it’s A

4 0

3 years ago