Answer:
The area of triangle is
Step-by-step explanation:
It is given that AB=19cm, BC=12cm and ∠B=105°
Now, Area of the triangle ABC=
=
=
=
Thus, the area of triangle is
Answer:
see the attachment
Step-by-step explanation:
• When two secants intersect a circle the measure of the angle between them is half the difference of the intercepted arcs. Tangent DH is a degenerate case of a secant in which both points of intersection are the same point (D). Thus ∠GHD is half the difference of arc GD and ED.
• We assume points B and C are on radii DA and EA, respectively. Hence arc DE has the same measure as ∠BAC, and ∠DGE has half that measure.
• Tangent DH will intersect radius DA at right angles. Hence ∠ADH = 90°.
• ∠DHE = ∠DHG, whose measure is given by the formula in the first answer choice. The formula in the 4th choice is different (and wrong).
• ∠DGE and ∠BFC both intercept arcs with the same measure. Neither is greater than the other: they are equal in measure.
• Inscribed triangle DGE cannot be a right triangle because none of its sides is a diameter of the circumcircle.
Answer:
2 3/4 hours
Step-by-step explanation:
Since there are 7 days in a week and she doesn't work 2 of them so 7-2=5 days that she works. Then to find out how much she time she spends traveling multiply the time by the days, 1/4x5/1)+(1/2x5/1)=5/4+5/2=1 1/4+1 1/2=2 3/4