Class 10
is a tangent to the circle with centre O to B. AB is a chord of length 24 cm at a distance of 5 cm from the centre. If the tangent is of length 20 cm, find the length of PO.Read more on Sarthaks.com – https://www.sarthaks.com/176103/pb-is-tangent-the-circle-with-centre-is-chord-of-length-24-cm-at-distance-of-cm-from-the-centre
OM=5~cm MSESHSEOM LAB and M is mid-point of AB, = 12 cm. In right-angled triangle A OMB, OB^{2}=OM^{2}+MB^{2} +OB^{2}=5^{2}+12^{2} OB^{2}=25+144 OB^{2}=169 \Rightarrow OB=169~cm OB=13~cm. As BP is tangent to circle at B, OB 1 BP. In right-angled triangle ▲ OBP, OP^{2}=OB^{2}+BP^{2} OP^{2}=13^{2}+20^{2} *OP=\sqrt{}569~cm Hence, the length of OP=\sqrt{}569~cm.
A vertical pole of a length 6 m casts a shadow 4m long on the ground and at the same time a tower casts a shadow 28 m long. Find the height of the tower.
Length of the vertical pole = 6m (Given)Length of the shadow of the pole = 4 m (Given)Let Height of tower = h mLength of shadow of the tower = 28 m (Given)In ΔABC and ΔDEF,∠C=∠E(angular elevation)∠B=∠F=90∘∴ΔABC∼ΔDFE (By AAA similarity criterion)∴ABDF=BCEF (If two triangles are similar then their corresponding sides are proportional.)∴6h=428⇒h=6×284⇒h=6×7⇒h=42mHence, the height of the tower is
Class 10 science best flow charts chapter 2
class 10 science best flowcharts by PROCBSE Introduction: Embarking on the Class 10 Science journey can be both exciting and challenging. To make the learning process more accessible, ProCBSE has curated a collection of top-notch flowcharts designed to simplify complex concepts. In this blog, we’ll explore the benefits of incorporating these visual aids into your
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Class 10 science best flow charts – chapter 1
class 10 science best flowcharts by PROCBSE Introduction: Embarking on the Class 10 Science journey can be both exciting and challenging. To make the learning process more accessible, ProCBSE has curated a collection of top-notch flowcharts designed to simplify complex concepts. In this blog, we’ll explore the benefits of incorporating these visual aids into your
Class 10 science best flow charts – chapter 1 Read More »