2 years ago

A triangle has side lengths of 39, 80, and 87. Is this triangle a right triangle?

Mathematics

2 answers:

Pani-rosa [81]2 years ago

6 0

Answer:

Step-by-ste

iren2701 [21]2 years ago

4 0

Answer:

Step-by-step explanation:

39²=1521

80²=6400

39²+80²=1521+6400=7921

87²=7569

7921≠7569

so it is not aright angled triangle.

You might be interested in

HELLP ASAP

Natali [406]

B, D, A
No problem make sure to heart my comment Helps

4 0

2 years ago

1.)Painting Jane is painting one wall of her living room. The wall is rectangular, 13 feet wide by 9 feet high. What is the area

antiseptic1488 [7]

Answer:

1. $117 ft^{2}$

2. $54 ft^{2}$

3. $1,428 ft^{2}$

4. $644 ft^{2}$

5. $4,700 ft^{2}$

6. $57,600 ft^{2}$

Step-by-step explanation:

First use $A = w*l$

$w = width$

$l = length$

It doesn't have to be $A = w*l$ , it could be $A = l*w$ . It will be the same answer.

1. $3 ft * 9 ft = 117 ft^{2}$

2. $3 ft * 18 ft = 54 ft^{2}$

3. $42 ft * 34 ft = 1,428 ft^{2}$

4. $23 ft * 28 ft = 644 ft^{2}$

5. $94 ft * 50 ft = 4,700 ft^{2}$

6. $360 ft*160 ft = 57,600 ft^{2}$

3 0

2 years ago

Find the measure of an angle that is four hundred eighty-five less than four times its supplement.

Ludmilka [50]

Is 121.25 because 485 divided by 4 is 121.25

4 0

2 years ago

an astronomy club has 40 members of which five are males and the rest female. what is the ratio of females to males

velikii [3]

Answer:

40:5

Females:Males

8 0

3 years ago

choose an equation in slope-intercept form for the line that passes through (-8,1) and is perpendicular to the y=2x-17. select o

Fed [463]

Y = 2x - 17, comparing to y = mx + c, slope m = 2.

If perpendicular, the new slope would be -1/2, that is the negative reciprocal of 2.

And passing through (-8 , 1).

using y = mx + c, and x = -8, y = 1, m = -1/2

1 = -1/2*-8 + c

1 = 4 + c

1 - 4 = c

c = -3

y = mx + c, substituting m = -1/2, and c = -3, y = -(1/2)x - 3.

Option C.

5 0

2 years ago