1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zubka84 [21]
3 years ago
12

Find the measure of c. A. 40 B. 70 C. 90 D. 50

Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

D. 50

Step-by-step explanation:

a = 90° (angle subtended in semicircle)

a + c + 40° = 180° (by angle sum postulate of a triangle)

90° + c + 40° = 180°

c + 130° = 180°

c = 180° - 130°

c = 50°

You might be interested in
Given PA=13 in. and CB=15 in.<br><br> What is CA ?
alexandr1967 [171]

Triangles CPA and CPB are both right triangles. They share a leg, so that leg in one triangle is congruent to that leg in the other triangle. We are given that PA is congruent to PB by the hash marks on the diagram. Thus two legs and an included angle are congruent between the triangles.

... ∆CPA ≅ ∆CPB by the SAS postulate


Then side CA ≅ CB = 15 in, because corresponding parts of congruent triangles are congruent (CPCTC).


... CA is 15 in.

8 0
2 years ago
Read 2 more answers
How many Solutions does 5p + 3 = 5p - 1 have?
Tresset [83]
No solution because 3=-1 isn’t true.
4 0
3 years ago
At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist head
Mars2501 [29]
So it took an hour an 15 minutes which means the distance traveled is their speed+1/4 of their speed, also any answers that have northbound going faster than 6km/h above south is not right so B and D seems to be out of the picture
4 0
3 years ago
Read 2 more answers
Help is for my daughter
marysya [2.9K]

Answer:

c.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Find the surface area of the figure shown.
balandron [24]

Answer:

The correct answer is option d.  576 ft^2

Step-by-step explanation:

From the figure we can see that a prism

<u>To find the surface area</u>

Surface area = Base area + area of 2 triangles + Two side area

Base area = length * breadth = 15 * 12 = 180 ft^2

Area of triangle = bh/2 = (12 * 8)/2 = 48 ft^2

Area of two triangle = 48 * 2 = 96 ft^2

Area of one side = 15 * 10 = 150 ft^2

Area of two side = 2 * 150 = 300 ft^2

Surface area = 180 + 96 + 300 = 576 ft^2

The correct answer is option d.  576 ft^2

3 0
3 years ago
Other questions:
  • 24(9) = 2x i need help with this
    9·1 answer
  • Partial products 42x5
    9·2 answers
  • A scientist has a container of 2% acid solution and a container of 5% acid solution. How many fluid ounces of each concentration
    8·1 answer
  • Square root of 13+29
    14·1 answer
  • Determine whether each set of numbers is a Phythagorean triple.
    6·1 answer
  • Helpp me PlzzzzzZZzz
    6·2 answers
  • Help I being asking for help for weeks
    11·1 answer
  • State if the two triangles are congruent. If they are, state how you know
    15·1 answer
  • Mr. Palmer deposited $850 into a simple interest account for 8 years, earning at an 8% interest rate. What will his total balanc
    11·1 answer
  • Write the equation of the line that passes through the points (-5, 2) and<br> (0, -1)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!