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Gala2k [10]
2 years ago
12

Perimeter of triangle? need some help please!​

Mathematics
1 answer:
pychu [463]2 years ago
3 0
You need to subtract the numbers for 180 and you will have the answer
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I need help with the bottom section b
d1i1m1o1n [39]

Answer:

Interior Angle Theorem

x=5

measure of angles: 46, 46, 134

Step-by-step explanation:

Interior angle theorem

12x-14=5x+21

7x=35

x=5

12x-14=12(5)-14=46

5x+21=5(5)+21=46

20x+34=20(5)+34=134

4 0
3 years ago
Is this shape a polygon?
Allushta [10]
No its not  polygons dont cross lines 

8 0
3 years ago
Read 2 more answers
What is the value of x?<br> Enter your answer, as a decimal, in the box.
RideAnS [48]

Answer:

x = 67.5 ft

Step-by-step explanation:

In ΔNMP

∵ AB // NP

∴ m∠ MAB = m∠MNP

∴ m∠MBA = m∠MPN

∵ ∠M is a comman angle

∴ ΔMAB is similar to ΔMNP

∴ MA/MN = MB/MP

∵ MA = 71.5 - 22 = 49.5

∴ 49.5/71.5 = x/97.5

∴ x = \frac{(49.5)(97.5)}{71.5} = 67.5

7 0
2 years ago
4w+5/-3=2 what does w equal
Pavlova-9 [17]

Answer:

w=-11/4 or -2  and 3/4

Step-by-step explanation:

To solve this, we first have to cancel out the dividing by-3. We can use the inverse operation of division, which is multiplication. We have to multiply both sides by -3, and the equation becomes 4w+5= -6.  Then, we subtract 5 from both sides. We get 4w= -11. We finally divide 4 on both sides, getting w=-11/4. -11/4 is in improper fraction form and -2 and 3/4 is in mixed number form.

3 0
3 years ago
How do I find the volume of a prism?
frez [133]

Answer:

470 cm³

Step-by-step explanation:

Decompose the prism into two rectangular prism.

Prism 1 will have the following dimensions and volume:

Length = 10 cm

Height = 8 cm

Width = 9 - 5 = 4 cm

Volume = L × W × H

Volume = 10 × 8 × 4 = 320 cm³

Prism 2:

Length = 10 cm

Height = 3 cm

Width = 5 cm

Volume = 10 × 3 × 5 = 150 cm³

✔️Volume of the entire prism = 320 + 150 = 470 cm³

6 0
2 years ago
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