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2 years ago

What's the area and perimeter

Mathematics

2 answers:

Lady bird [3.3K]2 years ago

8 0

Area: 68
Perimeter: 38

Mademuasel [1]2 years ago

6 0

Area means everything inside. So you would first find the area of the shape like if it was a rectangle. So do 8 times 11. Then solve for X. X=4 because 11-7=4. Then do 5x4=20. 20 is the amount of space you take off from 8x11=88 cause 88 is the area of a rectangle. This shape is not a rectangle. Your answer for area would be 68.

Perimeter means around the shape so add all the sides up. You already have all the lengths except for y. To solve for y, subtract 5 from 8 which equals 3. So Y=3. Next add up all the sides. So it''ll be 7+8+11+3+5+4=38.
Your answer for perimeter is 38.

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2 years ago

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2 years ago

Find the length of line segment UV.

pshichka [43]

Answer:

The length of the line segment UV is 76 units

Step-by-step explanation:

In a triangle, the line segment joining the mid-points of two sides is parallel to the third side and equal to half its length

In Δ ONT

∵ U is the mid-point of ON

∵ V is the mid-point of TN

→ That means UV is joining the mid-points of two sides

∴ UV // OT

∴ UV = $\frac{1}{2}$ OT

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∵ OT = 12x + 8

∴ 7x - 8 = $\frac{1}{2}$ (12x + 8)

→ Multiply the bracket by $\frac{1}{2}$

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→ Add 8 to both sides

∴ 7x - 8 + 8 = 6x + 4 + 8

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→ Subtract 6x from both sides

∴ 7x - 6x = 6x - 6x + 12

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→ Substitute the value of x in the expression of UV to find it

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2 years ago

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