Webb7 maj 2024 · Best answer Let O be the centre of the concentric circle of radii 4 cm and 3 cm respectively. Let AB be a chord of the larger circle touching the smaller circle at P. Then AP = PB and OP ⊥ AB Applying Pythagoras theorem in OPA, we have OA2 = OP2 + AP2 ⇒ 16 = 9 + AP2 ⇒ AP2 = 7 ⇒ AP = √7 cm ∴ AB = 2AP = 2√7 cm +2 votes Webb9 PA and PB are the tangents drawn to a circle with centre O. If PA= 6 cm and APB=600, then find the length of the chord AB. 6 cm 3 10 3The sum of the squares of three positive numbers that are consecutive multiples of 5 is 725. Find the three numbers. Section-C 11 Construct two concentric circles of radii 3cm and 7cm. Draw two tangents to the
The radii of two circles are 19 cm and 9 cm respectively. Find the ...
WebbGiven, two circles with centres O and O' have radii 3 cm and 4 cm. Two circles intersect at two points P and Q. OP and O’P are the tangents to the two circles. We have to find the length of the common chord PQ. We know that the radius of a circle is perpendicular to the tangent at the point of contact. So, ∠OPO’ = 90° Considering ... WebbIt is given that two circle having radii 3.5 cm and 4.8 cm touch each other internally. We know, the distance between the centres of the circles touching internally is equal to the difference of their radii. ∴ Distance between the centres of the two circles = 4.8 cm − 3.5 cm = 1.3 cm. Thus, the distance between their centres is 1.3 cm. dick and angela strawbridge chateau
How many vertices in a triangle - Math Questions
WebbThe development of a methodology to optimize the performance of breast tomosynthesis WebbIf the radii of two circles are 4cm and 3cm respectively then radius of the circle having area.....#class10maths #upboardclass10maths #upboardclass10maths #u... WebbCircumference of a cicle in terms of radius:. Circumference = 2·π·r = 2·3.14·3 = 18.85 (*) In terms of diameter:. Circumference = π·d = 3.14·6 = 18.84 (*) In terms of area:. Circumference C = √ 4·π·A = √ 4·π·28.27 = 18.85 (*) (*) 18.85 cm exactly or limited to de precision of this calculator (13 decimal places). Note: for simplicity, the operations … dick and alice sausage and pierogies