Answer:
22.6 degrees
Step:
The hypotenuse is 13cm using pythagoras theorem.
Now, finding the smallest angle is by using;
SOH
sin = opposite over hypotenuse
Thus, cos^-1 (12/13)
=22.61
and equals to 22.6 (1d.p）
Answer:
£30
Step-by-step explanation:
The ratio is 3:4. x:40=3:4 multiplied by 10, 30:40.
Answer:
51
Step-by-step explanation:
you don't have that on here so...I don't know how to help you there bud.
Answer:
43%
Step-by-step explanation:
Since, 43 square out of 100 are shaded, hence shaded area represents 43%
Answer: Bottom row = 55°, 75°, and 56°
Top angle = 79°
<u>Step-by-step explanation:</u>
Use the Triangle Sum Theorem, which states that the sum of the angles of a triangle equal 180°.
I am going to evaluate the 3 small triangles on the bottom and then the big triangle:
<u>Bottom Left Triangle</u>
45 + 80 + ? = 180
125 + ? = 180
? = 55
<u>Bottom Center Triangle</u>
54 + 51 + ? = 180
105 + ? = 180
? = 75
<u>Bottom Right Triangle</u>
50 + 74 + ? = 180
124 + ? = 180
? = 56
<u>Big Triangle</u>
56 + 45 + ? = 180 <em>56 was calculated from the bottom right triangle</em>
101 + ? = 180
? = 79
