Question

what is answer of the math of question ?
In ​

Answer 1

Answer:

Green revolution, great increase in production of food grains (especially wheat and rice) that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent.

Answer 2

$\huge\boxed{\fcolorbox{red}{ink}{SOLUTION:}}$

$\huge\boxed{\fcolorbox{purple}{ink}{GIVEN:}}$

In ∆ CPA and ∆ CQB

Angle P = ANGLE Q {90°}

Angle PCA = QCB (common angle )

$\huge\fbox\pink{✯Therefore✯}$

∆ CPA ~∆ COB

BC²=QC²+BQ²

QC²=(12)²-(8)²=144-64=80

$\frac{CP}{CQ} = \frac{PA}{QB} = \frac{CA}{CB} \\ \\ \frac{7}{28} = \frac{AC}{12}\\ \\AC = \frac{21}{2} = 10.5$