Parentheses (brackets/braces) are done first according to the order of operations.
Answer A
Obtuse, accute, obtuse, acute, A.
Answer is B. 48
By circle theorem, the angle at the centre of the circle is twice the angle at the circumference.
49 would be the answer I hope it helps
The measure of ABD=180°- 54°=26°
and then the measure of ADB= x
and x + 26° + 28°= 180°, sum of anlgle in a triagle property
it means x= 180°- 26-28=126°
application of sinus law in the triangle
sin 28 / BD = sin 126/ AD = sin 26/ 25 so we can deduce that
AD= 25sin126 / sin26= 46.12
let 's consider the triangle ADC, so for finding h, we have sin 28 = h / AD
and then h = AD x sin28=21.65
<span>Calculate the height of the tower is 21.65</span>
