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2 years ago

Sometimes when you are adding, you can breack apart ones to make a ten 37+8=?

Mathematics

2 answers:

IRINA_888 [86]2 years ago

8 0

37+8=45

You can also break it into tens and ones:

30+7+1+1+1+1+1+1+1+1

30+7=37

1+1+1+1+1+1+1+1=8

37+8=45

kipiarov [429]2 years ago

7 0

30+7+1+1+1+1+1+1+1+1=
45

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2 years ago

Find the length of the third side. If necessary, round to the nearest tenth.<br> 12

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<h3>Answer: 15</h3>

=========================================================

Work Shown:

a = 9, b = 12 are the two legs of the right triangle

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Read 2 more answers

6. a) Calculate the areas of the three squares. b) Is the triangle a right triangle? Explain. 3 cm 4 cm 2 cm

viktelen [127]

Answer

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The triangle is not a right-angled triangle

Step-by-step explanation:

We are given three squares

The first square has a length of 4cm

The second square has a length of 3cm

The third square has a length of 2cm

Part A

Total area = Area of square 1 + Area of square 2 + Area of square 3

Area of a square = l^2

Where l is the length of the square

Area of a square 1 = 4^2

Area of a square = 16 square cm

Area of square 2 = 3^2

Area of square 2 = 9 square cm

Area of square 3 = 2^2

Area of square 3 = 4 square cm

Total area of the square = 16 + 9 + 4

The total area of the square = 29 square cm

Hence, the total square of the figure is 29 square cm

Part B

$\begin{gathered} \text{ To proof if the triangle is a right angled triangle} \\ \text{ We n}eed\text{ to appy Pythagora's theor}em \\ \text{Hypotenus}^2=perpendicular^2+base^2 \\ \text{Hypotenus = 4}cm \\ \text{Perpendicular =3cm} \\ \text{Base = 2cm} \\ 4^2=3^2+2^2 \\ 16\text{ = 9 + 4} \\ 16\text{ }\ne\text{ 13} \\ \text{ Since the hypotenus is not equal to the summation of the perpendicular and base} \\ \text{Hence, the triangle is a not right angled triangle} \end{gathered}$

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