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3 years ago

Which is the best definition of an exterior angle of a triangle

Mathematics

1 answer:

Nina [5.8K]3 years ago

5 0

Answer:

exterior of an angle should add up to 180 with the other angle. so the angle next to the exterior angle should add up to 180. the exterior angle should be the one outside or facing the or opening up to the outside.

Step-by-step explanation:

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1) 2, 26, 74, 98, 146 ?

lukranit [14]

The next number would be 160

4 0

2 years ago

Find the missing side or angle.<br> Round to the nearest tenth.

BartSMP [9]

Answer:

$b = 2.7$

Step-by-step explanation:

Given:

< C = 53°

< B = 80°

a = 2

Required:

Find b

Solution:

The question given suggests we are given measures for a ∆.

To find side b, which corresponds to angle B, first, we'd find angle A, which corresponds to side a, then apply the Law of sines to find side b.

=> A = 180 - (53 + 80) = 47°

Law of Sines: $\frac{a}{sin(A} = \frac{b}{sin(B}$

Plug in the values into the formula

$\frac{2}{sin(47} = \frac{b}{sin(80}$

Cross multiply

$2*sin(80) = b*sin(47)$

Divide both sides by sin(47) to make b the subject of formula

$\frac{2*sin(80)}{sin(47} = b$

$2.69 = b$

$b = 2.7$ (nearest tenth)

8 0

2 years ago

A square unit that is 1 unit wide and 1 unit long is a?

MAXImum [283]

Answer:

A square with side length 1 unit, called 'a unit square,' is said to have 'one square unit' of area, and can be used to measure area.

6 0

2 years ago

Describe a sequence of transformations that will carry ABC onto DEF.

Mice21 [21]

Answer:

The sequence of transformations that maps ∆ABC to ∆A′B′C′ is a reflection across the line y = x followed by a translation 10 units right and 4 units up. Thus, the correct answer is (1) y = x and (2) 10 units to the right and 4 units up.

Step-by-step explanation:

7 0

3 years ago

Use the distance formula to find the unknown value. d= 171 mi, r= 19 mi/min, t= ?

mash [69]

D=rt
d/r=t
d=171
r=17
171/19=t=9

9 minutes is the answer

8 0

3 years ago