2 years ago

Find the area of obtuse triangle ABC when A=41 degrees, a=18cm, and b=22cm.

Mathematics

1 answer:

solniwko [45]2 years ago

5 0

Answer:

36 cm²

Step-by-step explanation:

cos A= (`sqrt(b)` + `sqrt(c)` - `sqrt(a)`)/(2bc)

⇒c ≈ 5 cm

Sabc= (1/2)bcsin A ≈ 36 cm²

You might be interested in

Order the following number from smallest to largest. <br><br>25, 10, -15, 0, -5

blondinia [14]

Answer:

-15, -5, 0, 10, 25

Step-by-step explanation:

The highest negative integer would be the smallest number, the the largest positive number would be the largest.

Brainliiest pleaseeeee

4 0

3 years ago

Read 2 more answers

Guys Pls Help ASAP! Will Give Brainliesttt. <br><br> Thxx

Allisa [31]

Answer:

23. x= -2/5 x= -5

24. x= 3/4 x= -1/6

25. x= 7/3. x= -5/4

26. x= 3 x= -2/3

27. x= 1. x= -2/7

28. x= 9/4. x= -1/3

29. x= 2/5 x= 1/3

30. x= 2/3 x= 1/2

6 0

3 years ago

A three-digit personal identification number is chosen using the digits 1–9. The digits cannot be repeated. What is the approxim

scoundrel [369]

Answer: C

Step-by-step explanation:it’s the 3rd ans on edge

6 0

3 years ago

a bag contains 20 pink marbles and 12 yellow marbles. you choose a marble at random. what is the probability of selecting a pink

Sati [7]

So the total amount of marbles is: 20+12=32
there are 20 pink marbles
20/32 = 10/16 = 5/8 (simplified)

4 0

3 years ago

A number cube is rolled 350 times and these are the results: 60 ones, 65 twos, 54 threes, 63 fours, 62 fives, and 46 sixes. What

BlackZzzverrR [31]

The experimental probability can be represented as a fraction of the number of times a five was not the result over the total number of times the cube was rolled.

The answer would be 288/350 or 144/175.

7 0

3 years ago